This route is high in the mountains between Costa di Biandino and Cimone di Margno in the Valsassina pre-Alps in the province of Lecco. The route begins at Piani delle Betulle, a small mountain resort in Alta Valsassina, in the municipality of Margno at 1501 m asl surrounded by the mountains of Lake Como and still inhabited year-round by a small group of residents. The Pian delle Betulle can be reached in 5 minutes by cable car from Margno (info times and costs at www.pianidibobbio.com), or in 15 minutes on foot from Alpe di Paglio where there is a parking lot. Starting by bike with some challenging climbs along an agrosilvopastoral road, the route continues on a midslope to Alpe Ortighera and Burnt Larch. This stretch of road offers spectacular views of the Valsassina and the mountains of the Grigne Group. From the Bocchetta di Olino, continue following the trail pointing to the ridge, slowly climbing very steep sections so it may be necessary to push the mountain bike by hand until you reach the Bocchetta di Agoredo. From this point, follow the trail along the Biandino ridge on the coast. Here the trail has steep inclines and has a few hairpin bends; it continues up the coast to 1930 meters at Laghitt, which is dominated by a small chapel overlooking Valvarrone and a picnic area where you can stop and admire the view of Val Biandino and Pizzo dei Tre Signori. Along the route it is possible to refuel with water only in the first part of the route. Ascent by ebike is recommended, without motor assistance this route can prove extremely challenging in the steepest sections.